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   <div id="projectname">CMSIS-DAP
   &#160;<span id="projectnumber">Version 1.1.0</span>
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   <div id="projectbrief">Interface Firmware for CoreSight Debug Access Port</div>
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<div class="title">DAP_Info</div>  </div>
<div class="ingroups"><a class="el" href="group___d_a_p__gen_commands__gr.html">General Commands</a></div></div><!--header-->
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<p>Get Information about CMSIS-DAP Debug Unit.  
<a href="#details">More...</a></p>
<p>Get Information about CMSIS-DAP Debug Unit. </p>
<p>The <b>DAP_Info Command</b> provides configuration information about the Debug Unit itself and the capabilities.</p>
<p><b>DAP_Info Command:</b> </p>
<div class="fragment"><div class="line">  BYTE | BYTE |</div>
<div class="line">&gt; 0x00 | ID   |</div>
<div class="line"> ******|******| </div>
</div><!-- fragment --><ul>
<li><b>ID:</b> Request Identifier to obtain information in the Response:<ul>
<li><b>0x01</b> = Get the <b>Vendor ID</b> (string).</li>
<li><b>0x02</b> = Get the <b>Product ID</b> (string).</li>
<li><b>0x03</b> = Get the <b>Serial Number</b> (string).</li>
<li><b>0x04</b> = Get the <b>CMSIS-DAP Firmware Version</b> (string).</li>
<li><b>0x05</b> = Get the <b>Target Device Vendor</b> (string).</li>
<li><b>0x06</b> = Get the <b>Target Device Name</b> (string).</li>
<li><b>0xF0</b> = Get information about the <b>Capabilities</b> (BYTE) of the Debug Unit.</li>
<li><b>0xFD</b> = Get the <b>SWO Trace Buffer Size</b> (WORD).</li>
<li><b>0xFE</b> = Get the maximum <b>Packet Count</b> (BYTE).</li>
<li><b>0xFF</b> = Get the maximum <b>Packet Size</b> (SHORT).</li>
</ul>
</li>
</ul>
<p><b>DAP_Info Response:</b> </p>
<div class="fragment"><div class="line">  BYTE | BYTE | BYTE |</div>
<div class="line">&lt; 0x00 | Len  | Info |</div>
<div class="line"> ******|******|++++++|</div>
</div><!-- fragment --><ul>
<li><b>Len:</b> Info length in bytes.</li>
<li><b>Info:</b> <ul>
<li>a <b>string</b> encoded in US ASCII. Len is the string length including the \x00 terminator. Len = 0 indicates no information.</li>
<li>a <b>BYTE</b> value (indicated with Len = 1).</li>
<li>a <b>SHORT</b> value (indicated with Len = 2).</li>
<li>a <b>WORD</b> value (indicated with Len = 4).</li>
</ul>
</li>
</ul>
<p>The ID <b>Capabilities</b> obtains information about the available interface to the Device. The information BYTE contains bits that indicate which communication methods are provided to the Device.</p>
<ul>
<li>Bit 0: <b>1 = SWD</b> Serial Wire Debug communication is implemented (0 = not implemented).</li>
<li>Bit 1: <b>1 = JTAG</b> communication is implemented (0 = not implemented).</li>
<li>Bit 2: <b>1 = SWO UART</b> - UART Serial Wire Output is implemented (0 = not implemented).</li>
<li>Bit 3: <b>1 = SWO Manchester</b> - Manchester Serial Wire Output is implemented (0 = not implemented).</li>
</ul>
<dl class="section note"><dt>Note</dt><dd>The ID for <b>Vendor ID</b>, <b>Product ID</b>, and <b>Serial Number</b> may return no string (indicated by Len = 0). In this case the USB Device Information is used to obtain Vendor, Product, and Serial Number.</dd>
<dd>
<b>Target Device Vendor</b> and <b>Target Device Name</b> are only available on Debug Units with known Target Device. Refer to <a class="el" href="group___d_a_p___config___debug__gr.html#ga792651aa4035a7ad712c6bb201db8a6a">TARGET_DEVICE_FIXED</a> for more information. If the Target Device is not known no string is returned (indicated by Len = 0). </dd></dl>
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